TY - BOOK AU - Walker,Richard TI - Heart: how the blood gets around the body T2 - Under the microscope SN - 0717292681 (v. 1) AV - QP37QP111.6 .U53 1998 vol.1 U1 - 612 Un55 1998 v.1 PY - 1998///. CY - Danbury, Conn. PB - Grolier Educational KW - Heart KW - Juvenile literature KW - Cardiovascular system KW - Blood KW - Circulation KW - Circulatory system N1 - Includes index ER -